import axios from 'axios'
import qs from 'qs'
import { Message } from 'element-ui'

// create an axios instance
const service = axios.create({
  baseURL: process.env.VUE_APP_BASE_API, // url = base url + request url
  // withCredentials: true, // send cookies when cross-domain requests
  timeout: 5000, // request timeout
  paramsSerializer(params) {
    return qs.stringify(params, {
      arrayFormat: 'repeat'
    })
  }
})

// response interceptor
service.interceptors.response.use(
  /**
   * If you want to get http information such as headers or status
   * Please return  response => response
  */

  /**
   * Determine the request status by custom code
   * Here is just an example
   * You can also judge the status by HTTP Status Code
   */
  response => {
    const data = response.data
    if (response.status >= 200 && response.status < 300) {
      return data
    } else {
      return Promise.reject(new Error(data))
    }
  },
  error => {
    let message = error.message
    if (error.response && error.response.data && error.response.data.message) {
      message = error.response.data.message
    }
    Message({
      message: message,
      type: 'error',
      duration: 5 * 1000
    })
    return Promise.reject(error)
  }
)

export default service
